Sound field transmission system surrounding a listener

Details Sound field transmission system surrounding a listener Sound field transmission system surrounding a listener

1972-05-09

1982-02-16

Olms, Douglas W.

179 1GD, H04S 300, H04H 500

Patent

active

043160581

ABSTRACT:
Systems for uniformly reproducing a sound field surrounding a listener are disclosed utilizing three channels of audio information signals. One channel provides signals representative of total sound pressure (a sum signal) and the two remaining channels provide orthogonal pressure gradients (difference signals) representative of location of sound sources which produce the sound field. FM radio systems utilizing the three channel technique for providing surround stereophonic sound are also described.

REFERENCES:
patent: 3257511 (1966-06-01), Adler
patent: 3375329 (1968-03-01), Prouty
patent: 3679832 (1972-07-01), Halpern
patent: 3708623 (1973-01-01), Dorren
Quadrasonics on the Air, Feldman Audio, Jan. 1970.
The Quart Broadcasting System, Gerzon Audio, Sep. 1970.
Report of Dorren Quadraplex System, Public Information, Aug. 1971, pp. 1-5.

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